To solve the following problems of a conventional four-wheel dolly: when the dolly is pushed to move, the dolly is likely to swing laterally with respect to the advancing direction, and the dolly cannot move straight or turn to a desired direction, and the dolly is likely to move in an unintended direction particularly when a road surface is very uneven, and both hands are required to control it.

Front wheels of the dolly are configured to be rotatable, and rear wheels are configured to be fixed. A handgrip is arranged at a right or left end of a front part of the dolly. The operator is positioned on the right or left side of the dolly, and pulls the dolly with one hand by the dolly.